| High variability of the gvpA-gvpC region in Microcystis |
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| 引用本文： | Xu Min,Xu Xudong,Gao Hong,Kong Renqiu. High variability of the gvpA-gvpC region in Microcystis[J]. 自然科学进展(英文版), 2007, 17(11): 1290-1295 |
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| 作者姓名： | Xu Min Xu Xudong Gao Hong Kong Renqiu |
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| 作者单位： | The State Key Laboratory of Freshwater Ecology and Biotechnology，Institute of Hydrobiology，Chinese Academy of Sciences，Wuhan 430072，China |
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| 基金项目： | 国家自然科学基金;国家重点基础研究发展计划(973计划) |
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| 摘 要： | Gas vesicles provide buoyancy to Microcystis and other common cyanobacterial bloom-forming species. gvpA and gvpC are structural genes encoding gas vesicle proteins. Phylogenetic analyses of 10 Microcystis strains/uncultured samples showed that gvpC and each intergenic segment of the gvpA-gvpC region can be divided into two types. The combination of different types of gvpC and intergenic segments is an important factor that diversifies this genomic region. Some Microcystis strains isolated in China possess a 172 to 176 bp sequence tag in the intergenic segment between gvpA and gvpC. The gvpA-gvpC region in Microcystis can be divided into at least 4 classes and more numbers of subclasses. Compared to rbcLX and other regions, the high variability of the gvpA-gvpC region should be more useful in identifying geographical isolates or ecotypes of Microcystis.
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High variability of the gvpA-gvpC region in Microcystis |
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| Xu Min,Xu Xudong,Gao Hong,Kong Renqiu. High variability of the gvpA-gvpC region in Microcystis[J]. Progress in Natural Science, 2007, 17(11): 1290-1295 |
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| Authors: | Xu Min Xu Xudong Gao Hong Kong Renqiu |
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| Affiliation: | The State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China |
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| Abstract: | Gas vesicles provide buoyancy to Microcystis and other common cyanobacterial bloom-forming species. gvpA and gvpC are structural genes encoding gas vesicle proteins. Phylogenetic analyses of 10 Microcystis strains/uncultured samples showed that gvpC and each intergenic segment of the gvpA-gvpC region can be divided into two types. The combination of different types of gvpC and intergenic segments is an important factor that diversifies this genomic region. Some Microcystis strains isolated in China possess a 172 to 176 bp sequence tag in the intergenic segment between gvpA and gvpC. The gvpA-gvpC region in Microcystis can be divided into at least 4 classes and more numbers of subclasses. Compared to rbcLX and other regions, the high variability of the gvpA-gvpC region should be more useful in identifying geographical isolates or ecotypes of Microcystis. |
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| Keywords: | Microcystis gvpA-gvpC diversity. |
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